Phebalium glandulosum subsp. macrocalyx R.L.Giles legitimate | sensu Giles, R., Drinnan, A.N. & Walsh, N.G. (22 October 2008), Variation in Phebalium glandulosum subsp. glandulosum: morphometric and anatomical evidence (Rutaceae). Australian Systematic Botany 21